Machine for polishing leather



PHILIP P. TAPLEY, OF LYNN, MASSACHUSETTS.

MACHINE FOR POLISHING LEATHER.

Specification of Letters Patent No. 10,379, dated January 3, 1854.

To'aZZ whom it may concern: A

Be it known that I, PHILIP P. TAPLEY, of Lynn, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Machinery for Dicing, Polishing, or Finishing Morocco, Leather, o-r Various otherMaterials; and I do hereby declare that the same is fully del scribed and represented in the following specication and the accompanying drawing, letters, figures, and references thereof, such drawing exhibiting a side view of my improved machine.

In the drawings B represents a reciprocat# ing arm which is supported by the frame work A so as to swing with a pendulous movement over the table or beam Gr. This arm works through a rocker shaft 0 and is pressed downward by a helical spring I) suitably applied to it and the shaft. A short lever Q is jointed to the lower end of said arm and carries at its lower end the dicing or smoothing ball or surface. yBeneat-h the arm B is a box F in which plays vertically a beam or table Gr that is supported in the usual way on springs placed within the box, the leather being laid on the top of this beam during the operation of polishing or dicing it. The reciprocating movement of the arm B is effected by a connecting bar or rod K which is jointed to the arm at one end and at the other it turns on a crank pin m projecting from a' revolving plate or wheel H that is revolved by an endless band proceeding from any proper motor. l

The upper arm of the lever Q has the front end of a secondary connecting rod O O jointed to it. This rod O O is formed in two parts O O jointed together so as to enable them to turn vertically toward or away from the connecting rod K. At the rear end of' the connecting rod O O, such rod is jointed to the lower part of an arm a that extends down from or near the rear endl of the connecting rod K. This secondary jointed connecting rod O O passes through a stirrup P that is extended down from the main c0nnecting rod. There is one spring W applied on the upper side of the secondary connecting rod and rod K and` for the purpose of bringing down the axes of the parts O O nearly into a straight line when necessary. This spring may be of any suitable form and material.

The object of the secondary connecting rod O O is not only to lift the dicing tool off the work after it has done its office, but Vto keep it out of contact with it until moved back to its farther'most position. Besides this it prolongs the action and pressureof the dicing tool on the leather and makes it pass over a greater surface o-f it with the required pressure than` would otherwise result. As the dicing or polishing tool advances forward, the angle which the swing bar B makes with the connecting bar or rod K varies, so that if the rod O O were not a jointed one, such variation would cause the lever Q to turn too soon on its fulcrum.

When the swing bar B and the arm a are parallel the two parts O O of the second-V ary connecting rod make an angle with each other and are pressed at their inner ends.

up toward the rod K. During the forward movement of the dicing tool the draft on them by the vibrating rod K causes them to move downward and approach a straight line with each other so as to increase the distance betweenfthe joint pins of their two outer ends and thereby prevent the lever Q from turning on its fulcrum until the parts OY O have reached their lowest positions. The

Vcrank wheel which operates the connectcrank pin of it is inits lowest position, the f dicing balls shall have advanced forward to or about toits extremepoint of contact with the leather. This being the case, while the crank pin is carried around the ynext ninety degrees of its orbit ofl revolution, the lever Q will be entirelyv thrown up into the in'- clined position as denoted by dotted lines ment of the swing bar B in the .same time .any material depression of the lever Q such as would carry its dicing or 'polishingend or ball down toward the table G. YThus the dicing ball is held up above the' table dur- Y j j ing its back movement over the leather.

During the IleXG'ninety degrees of. orbital 'i motion of the crank the lever Q igftumed;

on its fulcrum so as to bring itsv dicing ball down upon the rear end oftheleather or .its L g Y i pointof starting, and during the nextninety degrees of orbital motion of the crank the Vdicing ball is removed` forward in contact with the leather.

Were the two parts O of the connecting Y i ment of 1r aking the connecting rod O O in two parts jointed together and to `operate as specified, whereby the Contact of the dioing or polishing ball or surface with the leather is prolonged under circumstances as stated.

In testimony whereof, I have hereto set my signature this twenty-ninth day of October A. D. 1853. Y

PHILIP P. TAPLEY.

Witnesses:

R. N. EDDY, F. P. HALE, Jr. 

